If anyone thinks 10 grains difference in bullet weight is going to make a difference, I invite them to pull a 40 gr 22RF bullet,cut it in 4 equal weight pieces( check with a scale to see if each piece is about the same), and then convince yourself that the little bitty piece of lead in your hand is realy going to mean much traveling at 2800 fps or so. Even in bullet construction, location of the partition, or jacket thickness
